247| 1
|
银河系围绕什么旋转?既然人类只能看到很小范围夜空,银河系的形状是如何确定的? |
簽到天數: 185 天 [LV.7]常住居民III
|
| |||
簽到天數: 679 天 [LV.9]以壇為家II
|
| |||
GMT+8, 2024-12-1 08:19 , Processed in 0.018363 second(s), 15 queries , Gzip On, Memcache On.
Powered by Discuz! X2.5
© 2001-2012 Comsenz Inc.